CAJ | 학술논문

目的：探讨颈动脉狭窄患者血管成形和支架植入术（ CAS）后血流动力学的改变。方法给31例颈动脉狭窄患者行CAS。在术前、术后第1 d、3个月及1年时进行颈动脉彩色多普勒血流显像（ CDFI ）检查。比较手术前后颈动脉狭窄段的血管内径、峰值流速（ PSV）和舒张末期流速（ EDV）。结果与术前比较，患者术后各时间点颈动脉的血管内径明显增大，PSV和EDV明显降低（均P＜0．01）。与术后第1 d比较，术后3个月的颈动脉CDFI各项指标的差异无统计学意义；与术后第1 d比较，术后1年的颈动脉血管内径缩小（P＜0．05），PSV和EDV的差异无统计学意义。结论 CAS术后颈动脉狭窄得到缓解，血流动力学指标显著改善。术后1年时部分患者出现支架处血管再狭窄，但血流动力学无明显改变。
목적：탐토경동맥협착환자혈관성형화지가식입술（ CAS）후혈류동역학적개변。방법급31례경동맥협착환자행CAS。재술전、술후제1 d、3개월급1년시진행경동맥채색다보륵혈류현상（ CDFI ）검사。비교수술전후경동맥협착단적혈관내경、봉치류속（ PSV）화서장말기류속（ EDV）。결과여술전비교，환자술후각시간점경동맥적혈관내경명현증대，PSV화EDV명현강저（균P＜0．01）。여술후제1 d비교，술후3개월적경동맥CDFI각항지표적차이무통계학의의；여술후제1 d비교，술후1년적경동맥혈관내경축소（P＜0．05），PSV화EDV적차이무통계학의의。결론 CAS술후경동맥협착득도완해，혈류동역학지표현저개선。술후1년시부분환자출현지가처혈관재협착，단혈류동역학무명현개변。
Objective To explore the changes of hemodynamic after carotid angioplasty and stenting ( CAS) in patients with carotid artery stenosis .Methods Thirty-one carotid artery stenosis patients were treated with CAS , and were examined by color Doppler flow imaging ( CDFI) before operation and 1 d,3 months,one year after operation . Compared the carotid artery diameter , peak flow velocity (PSV) and end-diastolic velocity (EDV) before and after the operation.Results Compared with before operation , carotid artery diameter were significantly increased ,PSV, EDV were significantly decreased at each time point after operation ( all P<0.01 ) .Compared with 1 d after operation, there was no statistical difference on the CDFI results of carotid artery in 3 months after operation;compared with 1 d after operation the carotid artery diameter was significanty decreased in one year after operation ( P<0.05 ) , there was no statistical difference in PSV and EDV .Conclusions CAS can alleviate the carotid stenosis and improve the indicator of hemodynamics significantly .Vascular restenosis is found in some patients one year after operation , but there was no statistical difference in the indicator of hemodynamic .